Music-roll.



UNITED STATES PATENT OFFICE.

HENRY KOCH, OF RAHWAY, NEW JERSEY, ASSIGNOR TO THE REGINA COMPANY, OFRAI-IWAY,

NEW JERSEY, A CORPORATION OF NEW JERSEY.

MUSIC-ROLL.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed April 4. 1907. Serial No- 366310.

T 0 all whom it may concern:

Be it known that I, HENRY KOCH, a citizen of the United States, and aresident of Rahway, county of Union, State of New Jersey, have inventedcertain new and useful Improvements in Music-Rolls, of which thefollowing is a specification.

My invention relates to rolls for carrying perforated sheets of music ofthe kind used in automatically operated musical instruments and has forits object to construct rolls of this kind in such a manner as to beinterchangeable and capable of being easily shipped.

My invention will be fully described hereinafter and the features ofnovelty will be pointed out in the appended claims.

My improved roll is particularly adapted to instruments of the classshown and described in my pending application for a United States patentfiled October 16, 1905, Serial No. 282,982.

Reference is to be had to the accompanying drawings in which Figure 1 isa front elevation partly broken away showing my improved roll inoperative position; Fig. 2 is a sectional view thereof on the line 22 ofFig. 1; 'Fig. 3 is a detail view of the spool for supporting my roll andFig. 4 is a face view of a portion of the music sheet.

A and A represent stationary portions of a musical instrument and areprovided with forks or bearings B for the reception of the ends of theshaft C which in connection with the flanges D and D forms a spool Dwhich is intended to remain permanently connected with the instrument.

E is a core made of suitable material to which one end of the musicsheet F is attached and provided with an axial opening, so that saidcore E with the music sheet F rolled thereon may be placed in operativeposition on the spool hereinbefore mentioned. The flange D is removableso that the shaft C may be easily inserted into the axial opening of thecore E after which the flange D is again placed in position on the shaftC. It is of course to be understoodthat the spool D is removed from theinstrument before the music roll is placed thereon.

Each of the flanges D and D is provided with bosses D the boss of theflange D abutting against the portion A and the boss of the flange Dengaging a gear wheel G which is secured to the shaft C and which inturn engages the other support or portion A. The spool with the musicroll thereon is thus held in operative position and is prevented frommoving lengthwise of the shaft C.

To prevent the core E from rotating relatively to the shaft C, theflange D is provided with a pin H which enters a slot E in the core Eand serves as a means for keying the core to the shaft. The said core Eis provided with a reduced portion E the purpose oif which will be morefully described hereina ter.

The gear wheel G is adapted for engagement with suitable drivingmechanism to rotate the music roll and is used chiefly for re rollingthe music on the core E after all the selections on the roll have beenplayed; In playing the pieces or selections the gear wheel G isdisengaged from this re-rolling mechanism and the music is thus free tobe unrolled by any suitable mechanism.

I will now briefly describe the mechanism for starting the re-rollingmechanism which may be of the same character as described in my pendingapplication hereinbefore referred to.

I is ashaft, journaled in a stationary part of the instrument, andcarrying the arms J and J. The arm J is connected by means of a link Kwith the re-rolling mechanism and the arm J carries a member L having afork L adapted to engage the exposed portion of the pin H which isadjacent to the reduced portion E of the core E, as can be clearly seenby referring to Fi 2. Thus when the music is entirely unwound from thecore the member L is permitted to drop into a position Where the fork Lwill be in the path of the exposed pin H, the music sheet F being cutaway near its end as indicated at F for this purpose. Thus as the spoolcontinues to rotate in the direction indicated by the arrow in Fig. 2,the pin 11 will enter the fork L and force the member L to the left inFig. 2. This will cause the shaft I to be partially rotated and the linkK will be raised and the re-rolling mechanism thrown in commission. Itis to be understood that the forked end of the member L rests on themusic sheet before seen. Heretofore'each music roll consisted of acomplete spool so that each time a new series of selections was to beplayed a complete new spool had to be placed in position. These spoolswere very heavy and cumbersome and were bulky to ship. With my improvement the heavy parts of the device are shipped only with theinstrument. My improved roll is thus light and easy to handle and alsoeasy to pack and ship.

Various modifications may be made without departing from the spirit ofmy invention as brought out in the claims.

I claim 1. A spool for automatic musical instruments, comprising a shafthaving a flange secured thereto at a distance from one end, and a pinprojected from said flange parallel with the shaft toward the other end,and another flange arranged to he slipped on and off the said other endof the shaft.

2. A spool for automatic musical instruments, comprising a shaft withflanges adj acent to its ends, one of said flanges being arranged to heslipped on and off the shaft, and one of the flanges having an eccentricpin projected toward the other flange parallel with the shaft.

3. A music roll for automatic musical instruments, comprising a shaftwith a fixed flange adjacent to one end and a removable flange adjacentto the other end, one of said flanges having an eccentric pin projectedtoward the other flange parallel with the shaft and a core having anaxial bore to receive the shaft and an eccentric recess for said pin.

4. The combination with the spool shaft having flanges adjacent to eachend and a pin projected from one of the flanges toward the otherparallel with the shaft, of the core fitted betweensaid flanges andhaving an axial bore to receive the shaft, a recess for said pin and areduced portion adjacent to the flange from which said pin is projected,so as to expose a portion of the pin and mechanism arranged to beengaged by said exposed portion of the pin when the note sheet isunwound.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

v HENRY KOCH.

Witnesses:

MAURIoE OHAILLET, JoHN BosE.

